I just tried your sample and seems to have changed from ProgressDialog.STYLE_SPINNERto ProgressDialog.STYLE_HORIZONTAL, fixed an odd double-box problem.
And it also displays the title and text.
Edit:
You pass ProgressDialog.STYLE_SPINNERin the constructor ProgressDialog.
In the doc document, the second argument is the topic identifier.
ProgressDialog setProgressStyle to ProgressDialog.STYLE_SPINNER
case DIALOG_LOOKUP:
ProgressDialog pdlg = new ProgressDialog(this);
pdlg.setProgressStyle(ProgressDialog.STYLE_SPINNER);
return pdlg;